diff --git a/.env.sample b/.env.sample
index 5e3ab8c..68a9a10 100644
--- a/.env.sample
+++ b/.env.sample
@@ -6,6 +6,5 @@ POSTGRES_USER=POSTGRES_USER
 POSTGRES_PASSWORD=POSTGRES_PASSWORD
 RABBIT_URL=RABBIT_URL
 TELEGRAM_BOT_TOKEN=TELEGRAM_BOT_TOKEN
-CHAT_ID=CHAT_ID
 CHAT_URL=CHAT_URL
 DOMAIN=http://localhost:8080
diff --git a/README.md b/README.md
index db736fe..bd2bda2 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,68 @@
-# library-service
\ No newline at end of file
+# library-service
+
+This app was created for managing library data, with information on books, borrowings and payments regarding them.
+
+# .env
+
+Before running the project either in Docker or locally, you need to create .env file in the project`s root directory.
+You can fill it with this data or create it from .env.sample with your own:
+
+`
+STRIPE_SECRET_KEY=STRIPE_SECRET_KEY
+STRIPE_PUBLISHABLE_KEY=STRIPE_PUBLISHABLE_KEY
+POSTGRES_HOST=db
+POSTGRES_DB=library
+POSTGRES_USER=postgres
+POSTGRES_PASSWORD=postgres
+RABBIT_URL=amqp://guest:guest@rabbitmq3:5672/
+DOMAIN=http://localhost:8080
+TELEGRAM_BOT_TOKEN=TELEGRAM_BOT_TOKEN
+CHAT_URL=CHAT_URL
+DOMAIN=http://localhost:8080
+`
+
+You can get stripe keys here: https://stripe.com/
+Chat URL is for your telegram chat`s url, and you can get Telegram Bot Token here: https://t.me/BotFather
+
+# Lauching project locally
+
+To launch the application, follow next steps:
+
+1. Fork the repository
+
+2. Clone it:
+`git clone <here goes the HTTPS link you could copy on github repositiry page>`
+
+3. Create a new branch:
+`git checkout -b <new branch name>`
+
+4. Create virtual environment:
+`python3 -m venv venv`
+
+5. Acivate venv:
+`source venv/Scripts/activate`
+
+6. Install requirements:
+`pip3 install -r requirements.txt`
+
+7. Run migrations:
+`python3 manage.py migrate`
+
+8. Load the data from fixture:
+`python3 manage.py loaddata books_fixture.json`
+
+9. Run server:
+`python3 manage.py runserver`
+
+To run the tests:
+`python3 manage.py test book_service/tests`
+`python3 manage.py test borrowing_service/tests`
+`python3 manage.py test customer/tests`
+`python3 manage.py test notifications_service/tests`
+`python3 manage.py test payment_service/tests`
+
+# Running with docker
+
+After installing Docker run:
+    - docker-compose build
+    - docker-compose up
diff --git a/borrowing_service/tasks.py b/borrowing_service/tasks.py
index 9d9304c..66b7528 100644
--- a/borrowing_service/tasks.py
+++ b/borrowing_service/tasks.py
@@ -38,7 +38,7 @@ def check_overdue_task(self):
     for user in get_user_model().objects.all():
         if user not in users:
             send_notification(
-                TelegramUser.objects.get(user_id=borrowing.user.pk).chat_id,
+                TelegramUser.objects.get(user_id=user.pk).chat_id,
                 "No borrowings overdue today!"
             )
     return "Done sending notifications!"